$\overrightarrow{BK}$ bisects $\angle ABC$ and $m\angle ABK=28.3\degree$ . Find $m\angle KBC$ and $m\angle ABC$ .

What forms of energy are involved when snow on a mountain breaks loose, resulting in an avalanche? during an avalanche, the( 1 ) energy of the snow on the mountain is converted into ( 2 ) energy as the snow cascades down. ( 1 ) a. elastic b. kinetic c. potential d. radiant ( 2 ) a. chemical b. kinetic c. nuclear d. potential